Canute,
A typical Montreal to New York map horn of the F&I War time period typically had 45 to 50 town, fort, and place names with small forts, houses, stockades , churches, lakes and rivers drawn in and named up and down the horn. This one looks like a nice map horn of the period. Like Gary said it looks somewhat like a couple of map horns made by the Pointed Tree carver, but this one has none of the distinctive pointed trees in evidence and the Fonts used are different. The horns by the Pointed Tree carver also had very nicely done English coat of arms on the side of the horn opposite from the map.
Randy Hedden